3 rounds of leetcode medium, 2 questions were very easy, the last one was really hard (it was a binary tree question). They asked about space and time complexity. In terms of structures it was straight forward but the question itself was hard

Behavioural round consisted of "Tell me about yourself and why you wanna work for microsoft and resume screening. And technical interview consisted of 2 LC question 1 medium and 1 easy.

straightforward. directly jumped into data structure and algorithm and then a few fundamental computer science questions especially database management system and operating system then 2 or 3 questions related to resume.